body, div {
  margin: 0;
  padding: 0;
}

body {
  color: #fff;
  font: 14px;
}

#clock {
  width: 300px;
  text-align: center;
  background: #1a1a1a;
  margin: 10px auto;
  padding: 20px 0;
}

span {
  color: #000;
  width: 80px;
  line-height: 2;
  background: #fbfbfb;
  border: 2px solid #b4b4b4;
  margin: 0 10px;
  padding: 0 10px;
}
